package net.zjitc.servlet.response;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 * @Author Administrator
 * @Date 2020/5/19 16:16
 * 响应response设置响应体
 * 1,获取字符输出流
 * 2.输出数据到页面
 **/
@WebServlet("/writerDemo")
public class WriterDemo extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        /*解决response中文乱码：要在获取流对象之前
        1.设置服务器编码utf-8
        2.告诉客户端浏览器用什么编码来展示数据（响应头
         */
        //resp.setCharacterEncoding("utf-8");
        //resp.setHeader("Content-type","text/html;charset=utf-8");
        /*这两条语句可以简化写,它的功能还是上面两个*/
        resp.setContentType("text/html;charset=utf-8");



        //通过response对象得到字符输出流
        PrintWriter pw = resp.getWriter();
        //通过字符输出流，往页面写数据
        pw.write("<h1>Hi</h1>");
        pw.write("hello");
        pw.write("你好！");

    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        this.doGet(req,resp);
    }
}
